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MCP3008T Datasheet(PDF) 11 Page - Microchip Technology

Part No. MCP3008T
Description  2.7V 4-Channel/8-Channel 10-Bit A/D Converters with SPI Serial Interface
Download  40 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP3008T Datasheet(HTML) 11 Page - Microchip Technology

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© 2008 Microchip Technology Inc.
DS21295D-page 11
MCP3004/3008
Note:
Unless otherwise indicated, VDD = VREF = 5V, fCLK = 18* fSAMPLE, TA = +25°C.
FIGURE 2-25:
Effective Number of Bits
(ENOB) vs. VREF.
FIGURE 2-26:
Spurious Free Dynamic
Range (SFDR) vs. Input Frequency.
FIGURE 2-27:
Frequency Spectrum of
10 kHz Input (Representative Part).
FIGURE 2-28:
Effective Number of Bits
(ENOB) vs. Input Frequency.
FIGURE 2-29:
Power Supply Rejection
(PSR) vs. Ripple Frequency.
FIGURE 2-30:
Frequency Spectrum of
1 kHz Input (Representative Part, VDD = 2.7V).
9.00
9.25
9.50
9.75
10.00
0.00.5
1.01.5
2.0
2.5
3.03.5
4.0
4.5
5.0
V
REF (V)
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
VDD = VREF = 5 V
fSAMPLE = 200 ksps
0
10
20
30
40
50
60
70
80
90
100
110
100
Input Frequency (kHz)
VDD = VREF = 5 V
fSAMPLE = 200 ksps
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0
20000
40000
60000
80000
100000
Frequency (Hz)
VDD = VREF = 5 V
FSAMPLE = 200 ksps
FINPUT = 10.0097 kHz
4096 points
8.0
8.2
8.4
8.6
8.8
9.0
9.2
9.4
9.6
9.8
10.0
110
100
Input Frequency (kHz)
VDD = VREF = 2.7V
fSAMPLE = 75 ksps
VDD = VREF = 5V
fSAMPLE = 200 ksps
-70
-60
-50
-40
-30
-20
-10
0
1
10
100
1000
10000
Ripple Frequency (kHz)
VDD = VREF = 5 V
fSAMPLE = 200 ksps
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0
5000
10000 15000 20000 25000 30000 35000
Frequency (Hz)
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
fINPUT = 1.00708 kHz
4096 points


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